What will the slight cold weather be like in 2022?

In most cases, slight cold is the coldest first time in a year. The weather characteristics of slight cold are: it gets cold, but it is not cold yet. In the slight cold season, the direct point of the sun is still in the southern hemisphere, and the heat in the northern hemisphere is still in a state of loss. The heat absorbed during the day is still less than the heat released at night, so the temperature in the northern hemisphere continues to decrease.

The average temperature during the slight cold in Beijing is generally around -5℃, and the extreme minimum temperature is below-15℃. In the northeast, the average temperature at this time is around -30℃, the extreme minimum temperature can be as low as -5℃, and the average maximum temperature in the afternoon is only -20℃. The average temperature in the area north of 45 N in Heilongjiang, Inner Mongolia and Xinjiang and the northern part of Qinghai-Tibet Plateau is around -20℃, and the average temperature in the area near 40 N in the west of Hetao is around-10℃. The average temperature along the Huaihe River in Qinling Mountains is about 0℃, and there is no seasonal frozen soil in the south of this line, and there is no obvious wintering period for winter crops. At this time, the average temperature in the south of the Yangtze River is generally around 5℃. Although the field is still full of vitality, cold air sometimes goes south, causing certain harm.

In the south of China, winter is very warm. The middle of winter is 1 month, with frost and snow attacking and often freezing. The lowest temperature is about-10℃. The lowest temperature in northern South China is rarely below MINUS 5℃, and the low temperature below 0℃ in southern South China is even rarer. The coldest area in the middle of winter in China is the northern part of Heilongjiang, and the lowest temperature can reach about MINUS 40℃. It's freezing, dripping into ice. The low-altitude valley is the warmest place in the middle of winter in most parts of southern China. The average temperature in 65438+ 10 is around 12℃, and only a few teenagers may have a low temperature below 0℃. In addition, the inversion effect is very significant, so tropical fruits such as bananas and mangoes can grow well.

During the slight cold solar term, the East Asian trough developed the strongest and most stable, the Mongolian cold high and Aleutian low also reached the strongest and most stable, and the ridge scale of the westerly trough reached the maximum, which matched the strongest westerly intensity. The cooling process of cold air is frequent in the slight cold season, but few of them reach the cold wave standard.

As the saying goes, "March 9th is cold". "Sanjiu" is mostly from 65438+1October 9 to 17, which is also within the slight cold solar terms. But this is just a general rule. In a few years, a bad cold may be colder than a mild one.